Extension silently ignores exceptions in pylint

[ytimenkov]

Environment data

• VS Code version: 1.49.1
• Extension version (available under the Extensions sidebar): v2020.8.109390
• OS and version: Ubuntu
• Python version (& distribution if applicable, e.g. Anaconda): 3.8
• Type of virtual environment used (N/A | venv | virtualenv | conda | ...): venv
• Value of the python.languageServer setting: Microsoft

Expected behaviour

Some kind of diagnostics that linting has issues

Actual behaviour

Silently no problem in the "Problems" pane.

Steps to reproduce:

A custom ~/.pylintrc file with

[MASTER]
load-plugins=garbage

When running from the command-line:

Traceback (most recent call last):
  File "/home/default/waf-testing/.venv/bin/pylint", line 8, in <module>
    sys.exit(run_pylint())
  File "/home/default/waf-testing/.venv/lib/python3.8/site-packages/pylint/__init__.py", line 22, in run_pylint
    PylintRun(sys.argv[1:])
  File "/home/default/waf-testing/.venv/lib/python3.8/site-packages/pylint/lint/run.py", line 308, in __init__
    linter.load_plugin_modules(plugins)
  File "/home/default/waf-testing/.venv/lib/python3.8/site-packages/pylint/lint/pylinter.py", line 490, in load_plugin_modules
    module = modutils.load_module_from_name(modname)
  File "/home/default/waf-testing/.venv/lib/python3.8/site-packages/astroid/modutils.py", line 203, in load_module_from_name
    return load_module_from_modpath(dotted_name.split("."), path, use_sys)
  File "/home/default/waf-testing/.venv/lib/python3.8/site-packages/astroid/modutils.py", line 244, in load_module_from_modpath
    mp_file, mp_filename, mp_desc = imp.find_module(part, path)
  File "/usr/lib/python3.8/imp.py", line 296, in find_module
    raise ImportError(_ERR_MSG.format(name), name=name)
ImportError: No module named 'garbage'

Logs

Output for Python in the Output panel (View→Output, change the drop-down the upper-right of the Output panel to Python)

##########Linting Output - pylint########## ##########Linting Output - pylint########## ##########Linting Output - pylint########## ##########Linting Output - pylint##########

[ytimenkov]

This happens because I normally have conans.pylint plugin (per-user install) but it is not available in the most of venvs.

[karthiknadig]

Duplicate of #7314